Psychology Software Tools (PST) the developers of E-Prime® – the world leading stimulus presentation software with millisecond precision timing to ensure the accuracy of your data. E-Prime provides a truly easy-to-use environment for computerized experiment design, data collection, and analysis. E-Prime 3.0 is now available!

PST’s USB-based response and stimulus device, Chronos®, allows the accurate collection and verification of tactile, auditory, visual, and analog responses along with the precise source of audio and generic analog output timing. Chronos features millisecond accuracy and consistent sound output latencies across machines.

PST is also a leading manufacturer of hardware products used in fMRI research, including the Celeritas® Fiber Optic Response System, Hyperion® MRI Digital Projection System, Persaio® MRI Noise Cancellation Microphone System, and an MRI Simulator with MoTrak® – a head motion tracking system.

PST’s customer base is comprised of more than 5,000 labs in over 60 countries.

PST maintains ISO 9001:2008 and ISO 13485:2003 certifications – see www.pstnet.com for details.